What's the Best Movie About Cheating?

(Image Credit: Paramount/The Kobal Collection)

This week, "20/20? explores infidelity from every angle, from private investigators who document cheating to five women who fell for the same man - and then busted him on tape.

Over the years, filmmakers haven't shied away from this emotionally charged subject.

Vote below to pick your favorite movie about love, cheating and heartbreak - and watch "20/20? Friday at 10 p.m. ET.

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